.mytxt{
    width: 100%;
    height: 1.2rem;
    background:#fff;
    margin: 0.6rem 0;
}
.mydiv{
    position: relative;        
}
.mydiv img{
        position: absolute;
        width: 0.6rem;
        height: 0.6rem;
        right: 0.3rem;
        top:0.3rem;
            
}